Dissolved oxygen levels can be measured by a basic chemical analysis method (titration method), an electrochemical analysis method (diaphragm electrode method), and a photochemical analysis method (fluorescence method). The diaphragm electrode method is the most widely used method.
Why do we measure dissolved oxygen in water?
What can dissolved oxygen tell us about the condition of water? DO is considered an important measure of water quality as it is a direct indicator of an aquatic resource's ability to support aquatic life.Jul 7, 2021
What is the percentage of dissolved oxygen in water?
Healthy water should generally have dissolved oxygen concentrations above 6.5-8 mg/L and between about 80-120 %.
Why dissolved oxygen test is done?
Dissolved oxygen is used as an indicator of the health of a water body, where higher dissolved oxygen concentrations are correlated with high productivity and little pollution. This test is performed on-site, as delays between sample collection and testing may result in an alteration in oxygen content.Jan 13, 2021